• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Logical Database Design

Logical Database Design
A foreign key may be null and still adhere to the referential integrity constraint.

True
False

ANSWER DOWNLOAD EXAMIANS APP

Logical Database Design
A synonym is two or more attributes that have different names but the same meaning.

False
True

ANSWER DOWNLOAD EXAMIANS APP

Logical Database Design
A primary key is which of the following?

An attribute that uniquely identifies each column
An attribute that uniquely identifies each row
A derived attribute
Any attribute

ANSWER DOWNLOAD EXAMIANS APP

Logical Database Design
When mapping a ternary relationship with an associative entity into a relation which of the following is true?

Two relations are created.
One relation is created.
Three relations are created.
Four relations are created.

ANSWER DOWNLOAD EXAMIANS APP

Logical Database Design
A null value is assigned when no other value applies.

False
True

ANSWER DOWNLOAD EXAMIANS APP

Logical Database Design
The entity integrity rule states that:

no primary key may be unique.
no primary key may be equal to a value in a foreign key.
no primary key can be composite.
no primary key attribute may be null.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Logical Database Design

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑